Flight tracking site FlightAware.com saw few storm-related cancellations on Tuesday, but expected more cancellations by mid-day Wednesday “once airlines have a clearer picture of what airports will be impacted,” spokewoman Sara Orsi said via email.

Amtrak has modified East Coast service on a number of routes from Wednesday, September 12, through Sunday, September 16. Many routes in the affected areas have been canceled or will operate on modified schedules during some or all of that period.

Amtrak will waive charges for reservation changes for the affected period and routes. Call the reservations center at 800-USA-RAIL.

Cruise ships have rerouted ships that were scheduled to stop this week in Bermuda, according to website CruiseCritic.com. Bermuda is situated about 650 miles (1,050 km) east of Cape Hatteras, North Carolina.

Fort Sumter National Monument, located in South Carolina’s Charleston Harbor, is closed until further notice due to the hurricane threat, according to the National Park Service.